The instructor selects from a menu of heart and lung conditions by wireless remote control. The manikin presents itself as a real patient without visible auscultation sites. The student must palpate to identify correct auscultation locations, and will hear different heart and lung sounds as the Smartscope is moved to different locations on the manikin. A diagnosis of the condition selected by the instructor can be made by comparing the variations in sounds occurring at different sitesjust like a real patient. Lung sounds can be detected at 5 anterior, 10 posterior, and 2 midaxillary locations. Students can practice auscultation at 6 anterior heart sites. The remote control does not have to be pointed directly at the manikin or SmartScope to operate. One remote control will operate all SmartScopes within a 100-ft range. Great for group instruction. Listen to the sounds by either using headpieces on the SmartScope or by connecting to an amplifier/speaker (not included). Range on the unit is up to 100 ft of remote access. Operates using 2 AA and 2 AAA batteries (included). 5-year warranty.Lung conditions to select with the remote: bronchovesicular, bronchial, cavernous, coarse crackle, egophony, fine crackle, friction rub, infant, mono wheeze, normal lung, pectoriloquy, pulmonary edema, rhonch, stridor, vesicular, and wheeze.Heart conditions to select with remote: aortic regurgitation, atrial septal defect, holosystolic, midsystolic, mitral stenosis, normal, PDA, pulmonary, stenosis, S3 gallop, S4 gallop, systolic click, and VSD.